Trolley.



P. J. A. SGHNOOR.

TRO

APPLICATION r1 EPT.18,1911.

1 ,O19,84;8, Patented Mar. 12, 1 912.

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PETER JACOB ADOLPH SGHNOOR, OF HOLSTEIN, IOWA.

TROLLEY.

Specification of Letters Patent.

Application filed September 18, 1911.

Patented Mar. 12, 1912.

Serial No. 649,870.

To all whom it may concern:

Be it known that I, PETER J ACOB ADOLPI-I SoHNooR, a citizen of theUnited States, residing at Holstein, in the county of Ida and State ofIowa, have invented certain new and useful Improvements in Trolleys, ofwhich the following is a specification, reference being bad to theaccompanying drawings. V

This invention relates to trolleys and more particularly to improvedmeans for mounting the trolley head or harp upon the end of the trolleypole so as to enable the harp and the wheel carried thereby to turnfreely in rounding curves so as to eliminate the liability of the wheelleaving the conducting wire.

A further object of the invention is to pro vide a very simple means formounting the trolley head or harp in which the wheel is arranged wherebythe same has limited pivotal movement in a lateral direction.

With the above and other objects in view, the invention consists of thenovel features of construction, combination and arrangement of partshereinafter fully described and claimed, and illustrated in theaccompanying drawings, in which Figure l is a side elevation of atrolley head or harp and the wheel mounted therein showing the samearranged upon the upper end of the trolley pole; Fig. 2 is a top planview; and Fig. 3 is a section taken on the line 3-3 of Fig. 1.

Referring in detail to the drawings 5 designates the trolley pole whichis provided upon its upper end with a reduced tapering extension 6 toreceive the tubular portion 7 of an arm 8. Upon the supporting arm 8,the trolley head or harp 9 is mounted, the body portion of said armbeing horizontally disposed and longitudinally bifurcated as indlcatedat 10. Between the spaced portions of the arm formed by thisbifurcation, the horizontal extension 11 of the trolley harp 9 isdisposed. The spaced arms 12 of the harp between which the conductingwheel 13 is rotatably mounted, extend up wardly at an angle withrelation to the body portion 11 thereof. The end of the body 11 isrounded as indicated at 14:, and the opposed wall 15 of the arm 8 at theinner end of the bifurcation 10 is disposed in concentric relationthereto. The arm 8 is further provided with an arcuate recess 16 whichextends transversely thereof and opens into the space provided in saidarm by the bifurcation 10. Upon the rounded end 14 of the trolley heador harp 9 and extending longitudinally therefrom, a lug 17 is formed.This lug is disposed within the recess 16 of the arm 8 when the partsare assembled and is adapted to limit the lateral pivotal movement ofthe harp 9 upon the supporting arm. The body 11 of the harp is providedwith a vertically extending opening 18 to receive the pivot bolt 10which extends through the parallel spaced portions of the supportingarm. A securing nut 20 is threaded upon the lower end of this pivot boltand retains the parts in their assembled positions.

The end walls of the recess 16 extend radially from the pivot 19 andwith these end Walls of the recess the radially extending side edges ofthe lug 17 are adapted to engage in the pivotal movement of the harp orhead as clearly shown in dotted lines in Fig. 3. Upon the trolley harp 9an eye 21 is formed to receive the rope 22 whereby the wheel 18 may bedisengaged from the current conducting wire W by pulling the pole downupon the top of the car in the usual manner.

From the foregoing it is thought that the construction and manner ofoperation of my improved trolley will be fully understood. The parts maybe easily and quickly assembled and by pivotally mounting the harp uponthe end of the pole, the same may move independently of the pole whenthe car rounds a curve so that it will follow the conducting wire andnot be disengaged therefrom. The device is simple, effective inpractical operation and may be manufactured at a comparatively smallcost. By providing the stop lug 19 the abnormal movement of the harpwith relation to the pole is prevented while at the same time there issuflicient movement of the harp for the accomplishment of the desiredpurpose.

WVhile I have shown and described the preferred construction andarrangement of the various parts, it will be understood that the deviceis susceptible of considerable modification without departing from theessential feature or sacrificing any of the advantages thereof.

Having thus described the invention what is claimed is The combinationwith a trolley pole, of a supporting arm rigidly fixed to the upper endof said pole and including a horizon,-

tally disposed longitudinally bifurcated body portion, a harp havingupwardly eX tending angularly disposed parallel wheel carrying arms,said harp also having a horizontally disposed body portion to bereceived in the bifurcated body of said supporting member, the end ofthe body of said harp and the inner Wall of the bifurcation in said bodymember being respectivelyconvex and concave and concentrically disposed,a pivot bolt connecting the parallel arms formed by the bifurcation inthe body member and extending through the horizontal portion of theharp, the body of said supporting member being further provided with atransversely extending arcuate recess having its end walls radiallydisposed with relation to said pivot bolt, said recess opening into thespace between the arms of said supporting member, the body of said harphaving a stop lug integrally formed Copies of this patent may beobtainedfor five cents each, by addressing the Commissioner of Patents,

Washington, D. 0.

